Divide up weekly jobs over multiple days of the week

[jadonn]

The weekly Charmed OpenStack Tester jobs are failing or timing out frequently. I think this is because of resource contention from all of these jobs running on the same day at roughly the same time. I want to divide up the weekly jobs over multiple days of the week to spread out this load and to help avoid resource contention.

ZOSCI config now has weekly pipelines for each day of the week.

I am going to replace the periodic-weekly list of jobs with lists of jobs for each day of the week. I am going to divide up the jobs so that only two or three weekly jobs run on any given day of the week.